Amazon.com, the Federal Aviation Administration and privacy activists sparred in front of Congress on Wednesday over drones and the future of American airspace as one privacy expert warned few laws would stand in the way of “a nightmare scenario for civil liberties”.

The subject before the Full House committee on oversight and government Reform was a proposed rule by the FAA, which would permit commercial drone use in a variety of ways (at the discretion of the agency, which would issue licenses).

The hearing was silent on the topic of drone use by law enforcement. The agency was, though, very concerned about unauthorized filming of football games, pointing to its No Drone Zone PSA campaign as a marked success.